# Title Image Description Video
1 Sunset

Scatttering

A beam of light shines through a tank of water and onto the side wall. Add a capful of solution (cedarwood oil in alcohol or Lysol) to the water and stir with the stick. The "sun" will begin to turn orange. To increase the scattering, add more solution.

Video 1

Video 2

2 Soap Film Interference

Thin Films

Turn on the light. Dip the wire frame into the soap solution and secure with the clip. Adjust the angle until the pattern appears on the side wall.

Video 1

Video 2

3 Holograms

Holography

Turn on the light. Rotate the cylinder or walk by the hologram. A woman throws a kiss and winks at you. Video